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A bowling ball is released from rest and rolls without slipping down an inclined plane at 18° to the horizontal. What is the speed (m/s) of its center of mass after it has rolled 2.5m down plane? Think about the bowling ball to be a uniform sphere.
a 15.0-m length of wire consists of 9.0m of copper followed by 6.0m of aluminum both of diameter 1.5mm . a voltage
A square conductor of edge length .4m carries a clockwise currentof 10A. What are the magnitude and direction of the magneticfield at the center of the square? If this conductor wascircular in nature and carried the same current, what magneticfiel..
A thin pole extends straight up from the bottom of a clear pond 2 m deep. What is the length of the pole's shadow on the bottom of the pond
A 1500 kg artificial satellite will appear to be stationary to anobserver on Earth if its period is exactly equal to Earth'srotation period, i.e one day. (a) What must the orbitalradius of such a satellite be? and (b) What will be its orbitalspeed?
A 61 V. battery is connected across a 62600 ohm and a 31700 ohm resistor connected in series. What is the per cent error in the voltmeter reading
A sphere of copper is subjected to 81.1 MPa of pressure. The copper has a bulk modulus of 130 GPa. By what fraction does the radius of the sphere change
An astronaut in training is placed in a merry-go-round-likedevice that rotates her at high speed in a horizontal circle ofradius 5 m. At what rate does she have to rotate
When a certain air-filled parallel-plate capacitor is connected across a battery, it acquires a charge of 200 µC on each plate. What is the dielectric constant of the dielectric slab
Two identical conducting spheres each having a radius of 0.500 cm are connected by a light 2.00-m-long conducting wire. A charge of 60.0 µC is placed on one of the conductors
A spring with spring constant 10N/m hangs from the ceiling. A ball is attached to the spring and allowed to come to rest. What is its the mass of the ball
The body contains many small currents caused by the motion of ions in the organs and cells. Measurements of the magnetic field around the chest due to currents in the heart give values of about 1.0 µG. how large is the current in the heart
A refinery buys gas that is metered at 52 degrees F and 250 psig. The refinery pays for the gas in a price per SCF. How many SCF were purchased
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